diff -r 5b91bbab1ac0 -r e5f8c99b0987 src/ascension/mesh.h
--- a/src/ascension/mesh.h	Sat May 10 15:42:56 2025 +0200
+++ b/src/ascension/mesh.h	Sat May 10 18:51:45 2025 +0200
@@ -28,12 +28,61 @@
 #ifndef ASCENSION_MESH_H
 #define ASCENSION_MESH_H
 
+#include "datatypes.h"
+
+enum AscMeshType {
+    ASC_MESH_2D,
+    ASC_MESH_2D_COLORED,
+    ASC_MESH_3D,
+    ASC_MESH_3D_COLORED,
+};
+
 typedef struct AscMesh {
+    // TODO: for batched rendering, VAO and VBO must not be part of the mesh
     unsigned vbo;
     unsigned vao;
-    unsigned vertices;
+    enum AscMeshType type;
+    unsigned vtx_count;
+    float *vtx_data;
 } AscMesh;
 
+typedef struct AscMeshVertex2d {
+    asc_vec2f pos;
+    asc_vec2f uv;
+} AscMeshVertex2d;
+
+typedef struct AscMeshVertex2dColored {
+    asc_vec2f pos;
+    asc_vec2f uv;
+    asc_col4f color;
+} AscMeshVertex2dColored;
+
+typedef struct AscMeshVertex3d {
+    asc_vec3f pos;
+    asc_vec2f uv;
+} AscMeshVertex3d;
+
+typedef struct AscMeshVertex3dColored {
+    asc_vec3f pos;
+    asc_vec2f uv;
+    asc_col4f color;
+} AscMeshVertex3dColored;
+
+
+void asc_mesh_destroy(AscMesh *mesh);
+
+
+/**
+ * Creates a 2D plane.
+ *
+ * @param mesh the mesh to initialize
+ */
+void asc_mesh_plane_2d(AscMesh *mesh);
+
+
+
+// TODO: replace below functions with a batched rendering implementation
+
 /**
  * Allocates VBO and VAO for one or more meshes.
  *
@@ -55,6 +104,6 @@
  *
  * @param mesh the mesh to draw
  */
-void asc_mesh_draw_triangle_strip(AscMesh *mesh);
+void asc_mesh_draw_triangle_strip(const AscMesh *mesh);
 
 #endif //ASCENSION_MESH_H